Term
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Definition
number of births and number of deaths
Birth rate: b
Death rate: d |
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Term
b<d
Population increase or decrease?? |
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Definition
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Term
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Definition
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Term
| r is positive the the population is....... |
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Definition
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Term
| r is negative, then the population is..... |
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Definition
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Term
| If r is 0, then the population... |
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Definition
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Term
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Definition
| Intrinsic rate of increase, or per capita growth rate |
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Term
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Definition
how many females are produced by females in a given population; on average, how many female offspring is the female roducing; net growth rate, net replacement rate |
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Term
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Definition
| each female is producing one female youth |
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
| Continuous population growth in an unlimited environment |
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Term
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Definition
| Population size at which growth stops |
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Term
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Definition
| common method to test hypothesis concerning the relationship between observed and hypothesized frequencies |
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Term
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Definition
· the effects of biotic factors, such as disease and predation, are often influenced by population density, biotic factors are often referred to as density dependent factors |
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Term
| Density-independent factor |
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Definition
· abiotic factors, such as floods and extreme temp, can exert their influences independently of population density |
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Term
| Geometric population growth |
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Definition
| Growth by any population with pulsed reproduction |
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Term
| Intrinsic rate of increase |
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Definition
· the per capita rate of increase attained under such circumstances, r max |
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Term
| Logistic population growth |
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Definition
· as resources are depleted, population growth rate slows and eventually stops |
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Term
| Sigmoidal population growth curve |
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Definition
· as population size increases, growth rate eventually slows and then ceases as population size levels off. |
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